Should I take NR or NMN?

Both raise NAD+ levels effectively. NR (nicotinamide riboside) has more published human clinical trials. NMN (nicotinamide mononucleotide) is one step closer to NAD+ in the biosynthetic pathway. For chronic illness patients, NR is generally better tolerated.

How much NAD+ precursor should I take?

Standard dosing is 250mg to 500mg of NR or NMN daily. For chronic illness recovery, some practitioners use 1,000mg daily for the first 3 months, then reduce to maintenance.

Can I take NAD+ IV instead of supplements?

Yes. IV NAD+ provides 100% bioavailability and is used in intensive detox protocols. However, it is expensive ($750-$1,500 per session) and can cause significant Herxheimer reactions in toxic patients.

Does NAD+ help with mold illness?

NAD+ is critical for mitochondrial function and Phase I liver detoxification, both of which are severely impaired in mold toxicity. Replenishing NAD+ can significantly improve energy, cognitive function, and detoxification capacity.

NAD+ Supplement Guide: NR vs NMN and What the Research Says

NAD+ (Nicotinamide Adenine Dinucleotide) is not a supplement trend. It is a fundamental coenzyme present in every living cell, required for over 500 enzymatic reactions in the human body. Without adequate NAD+, your mitochondria cannot produce energy, your liver cannot detoxify, and your DNA cannot repair itself.

In chronic illness — particularly mold toxicity and CCI — NAD+ levels are depleted to a degree that standard metabolic function stalls. Here is what you need to know about restoring it.

Why NAD+ Matters in Chronic Illness

NAD+ is required for three critical functions that are all compromised in CIRS, CCI, and MCAS:

1. Mitochondrial Energy Production

The electron transport chain (where ATP is made) requires NAD+ as a primary electron carrier. When NAD+ is depleted, ATP production drops. This is the biochemical basis of the crushing fatigue that defines chronic illness.

2. Sirtuin Activation

Sirtuins are a family of proteins that regulate cellular repair, inflammation, and aging. SIRT1, SIRT3, and SIRT6 all require NAD+ as a co-substrate. When NAD+ is low, sirtuin activity drops, and the body loses its ability to self-repair and regulate inflammation.

3. PARP Activity (DNA Repair)

PARP enzymes repair DNA damage caused by oxidative stress. In mold toxicity, oxidative stress is dramatically elevated, which increases PARP activity, which consumes more NAD+, creating a vicious cycle of depletion.

NR vs NMN: The Biosynthetic Pathway

NAD+ is synthesized from precursors via the salvage pathway:

Niacin → NR → NMN → NAD+

Both NR and NMN are converted to NAD+. The debate is which one is more efficient.

Nicotinamide Riboside (NR)

Brand examples: Tru Niagen, Elysium Basis
Human trials: Multiple published RCTs showing safe and effective NAD+ elevation
Conversion: NR → NMN → NAD+ (two steps)
Bioavailability: Well absorbed orally, extensively studied pharmacokinetics
Cost: Moderate ($40-60/month)

Nicotinamide Mononucleotide (NMN)

Brand examples: ProHealth, DoNotAge
Human trials: Fewer published RCTs, but growing body of evidence
Conversion: NMN → NAD+ (one step, theoretically faster)
Bioavailability: Debated. Some evidence NMN is converted to NR in the gut before absorption, negating the "one step closer" advantage.
Cost: Higher ($50-80/month)

The Verdict

For chronic illness patients, NR is the safer starting choice because it has more published human safety data and is generally better tolerated. NMN is a reasonable option if NR is not effective.

Dosing Protocol

Standard Maintenance

250mg to 500mg daily of NR or NMN
Take in the morning (NAD+ has circadian effects and may disrupt sleep if taken at night)
With or without food

Chronic Illness Recovery (Aggressive)

500mg to 1,000mg daily for the first 3 months
Reduce to 250mg to 500mg for maintenance
Consider adding TMG (trimethylglycine) 500mg to support methyl groups consumed during NAD+ metabolism

IV NAD+ (Clinical Setting)

250mg to 750mg infused over 2 to 4 hours
Typically administered 2 to 4 times per month
Cost: $750 to $1,500 per session
Significant Herxheimer risk in toxic patients — start with 250mg

Supporting the NAD+ Stack

NAD+ does not work in isolation. The following co-factors optimize the pathway:

B-Complex — B2 (riboflavin) and B3 (niacin) are direct NAD+ precursors
Magnesium — Required co-factor for NAD+-dependent enzymatic reactions
TMG (Trimethylglycine) — Replenishes methyl groups consumed by NAD+ metabolism
Resveratrol — Activates SIRT1, amplifying the effects of elevated NAD+
CoQ10 — Supports electron transport chain function alongside NAD+

When to Start NAD+ in the Recovery Sequence

NAD+ is a powerful tool, but timing matters:

First: Open drainage pathways (liver, kidneys, lymph) — 30 days
Then: Start binders to reduce mycotoxin burden — 30 days
Then: Introduce NAD+ precursors once the body can handle the increased metabolic activity

Starting NAD+ too early in a toxic patient can accelerate cellular processes faster than the drainage system can handle, triggering severe Herxheimer reactions.

Disclaimer: I am a researcher, not a doctor. This information is for educational purposes only. Consult with a qualified practitioner before starting NAD+ supplementation.